diff --git a/iOS/DoraemonKit/Src/GPS/DoraemonGPSViewController.m b/iOS/DoraemonKit/Src/GPS/DoraemonGPSViewController.m
index e308708be4cff1b7d1a0d5097f3788e0991dcc23..0ee07e693c89de3fd5742f4a0f447942b49615d3 100644
--- a/iOS/DoraemonKit/Src/GPS/DoraemonGPSViewController.m
+++ b/iOS/DoraemonKit/Src/GPS/DoraemonGPSViewController.m
@@ -67,7 +67,7 @@
 
     if (_operateView.switchView.on) {
         CLLocationCoordinate2D coordinate = [[DoraemonCacheManager sharedInstance] mockCoordinate];
-        if (coordinate.longitude>0&&coordinate.latitude>0) {
+        if (coordinate.longitude != 0 && coordinate.latitude != 0) {
             [_mapCenterView hiddenGPSInfo:NO];
             [_mapCenterView renderUIWithGPS:[NSString stringWithFormat:@"%f , %f",coordinate.longitude,coordinate.latitude]];
             [self.mapView setCenterCoordinate:coordinate animated:NO];